Improved elastic composition to imitate ivory and similar materials



UNITED STATES PATENT QFFIGE.

WILLIAM M. WELLING, OF NEW YORK, N. Y.

IMPROVED ELASTIC COMPOSITION T0 IMITATE IVORY AND SIMILAR MATERIALS.

Specification forming part of Letters Patent No. 89,100, dated April 20, 1869 antedated April 9, 1869.

To all whom it may concern.-

Be it known that I, WILLIAM M. WELLIN of the city and State of New York, have invented, made, and applied to use a certain new and useful Improvement in Elastic Oomposition; and I do hereby declare the following to be a full, clear, and exact description of the said invention, and to the features which distinguish the same from other compositions.

Heretofore a composition has been made resembling ivory by the introduction of kaoline with shellac and camphor, and a reference is hereby made to Letters Patent granted to me August 4, 1857, for such compound, and also to the general method of mixing and working the material, the present compound being worked in a somewhat similar manner.

I make use of shellac and india-rubber as the basis of my present composition, and introduce camphor, kaoline, white lead, ivorydust, bone-dust, dust of woods, and coloringmatter, according to whatever peculiarity of compound or color may be required for any particular article.

The india-rubber that I employ is the native gum, without being vulcanized. This is to to partially dissolved or sufticiently softened to be readily worked and intimately mixed with shellac in the presence of heat.

I find that rollers heated by steam are the best for mixing the shellac and rubber, and also for mixing in the other ingredients, so as to render the mass homogeneous.

The proportions of the materials may be varied according to the extent of elasticity required in the compound, and said materials are enumerated as follows: No. 1, shellac, one pound; No. 2, indiarubber, three ounces, more or less; No. 3, gum-camphor, half an ounce, more or less; No. 4, kaoline; No. 5, ivory-dust; No. 6, bone-dust; No. 7, dustof holly, satin, or other woods; No. 8, coloring-matter.

The last five articles are to be used in whatever proportion required, and one or more of them introduced, according to the color or peculiar character desired for the elastic composition.

What I claim, and desire to secure by Letters Patent, is-

The elastic compound formed by a mixture of the ingredients Nos. 1 and 2 in a heated state.

In witness whereof I hate hereunto set my signature this 19th day of September, 18ii8.

WM. M. WELLING.

Witnesses:

OHAs. H. SMITH, GEO. T. PINGKNEY. 

